Humming/drumming CV joint? Bearing?
Discussion
2014 Mini One D on 97K.
Car was running silently until a recent 300+ mile trip. When I say silently, I mean on a freshly resurfaced motorway at 65-70 there was literally no road or mechanical noise at all for 10+ miles.
During the trip it developed a constant drum/humming. Brakes have been dismantled and cleaned, no binding, wheels spin freely jacked up and there is no noise or play on either side. Both sets of CV boots are in good shape, no visible leaks or damage.
The noise is constant, louder with speed. Noise is not affected by the gear used, clutch in or out or braking. In fact the noise is there just rolling with the ignition off and in neutral.
To me I'd say wheel bearing but dont really know enough to be sure. Garage is booked with on 6 October but if I can do anything myself (on the drive) before then it would be better.
Any suggestions appreciated.
Car was running silently until a recent 300+ mile trip. When I say silently, I mean on a freshly resurfaced motorway at 65-70 there was literally no road or mechanical noise at all for 10+ miles.
During the trip it developed a constant drum/humming. Brakes have been dismantled and cleaned, no binding, wheels spin freely jacked up and there is no noise or play on either side. Both sets of CV boots are in good shape, no visible leaks or damage.
The noise is constant, louder with speed. Noise is not affected by the gear used, clutch in or out or braking. In fact the noise is there just rolling with the ignition off and in neutral.
To me I'd say wheel bearing but dont really know enough to be sure. Garage is booked with on 6 October but if I can do anything myself (on the drive) before then it would be better.
Any suggestions appreciated.
Krikkit said:
Does it change while cornering?
Could be a CV joint, wheel bearing or (if it has one) the intermediate bearing on the driver's side driveshaft
Might be my imagination but I can hear a difference on fast left corners >30mph, nothing at lower speeds, ie. turning @ <20.Could be a CV joint, wheel bearing or (if it has one) the intermediate bearing on the driver's side driveshaft
And no perceptible change on right hand bends at speed.
Edited by 21TonyK on Monday 1st September 10:55
Had almost identical on my Nissan - wheel bearing was my issue. Yours sounds very likely....but could potentially be tyres? Years ago I had an identical noise on an old Mk5 Civic Aerodeck when the Avons ran low on the rears. I was adamant is was the wheel bearings, but a swap of tyres front to rear revealed all!
MattyD803 said:
I was adamant is was the wheel bearings, but a swap of tyres front to rear revealed all!
Thats going to be Wednesdays job, the fronts are looking decidedly knackered. I'll swap with the rears and try it, they're only half knackered. MOT in a few weeks so they all need replacing really, ditch finders it came on.MattyD803 said:
Had almost identical on my Nissan - wheel bearing was my issue. Yours sounds very likely....but could potentially be tyres? Years ago I had an identical noise on an old Mk5 Civic Aerodeck when the Avons ran low on the rears. I was adamant is was the wheel bearings, but a swap of tyres front to rear revealed all!
Yes good point. I had the same problem, although a symmetric setup front and rear with the same tyres made me think it was the bearings. Swapped the bearings in vein, replaced the tyres and all the odd behaviour was gone!Okay, this might sound a little mad but...
Got both the front wheels off the ground with the engine running... 3rd gear at idle.
Drivers wheel is spinning faster than passenger, neither making any noise but right hand wheel spins more freely than left. Brakes not rubbing.
Should both wheels spin evenly under no load?
I'm just guessing at things before ordering a new hub/bearing (or maybe I need to do both at the same time?)
Got both the front wheels off the ground with the engine running... 3rd gear at idle.
Drivers wheel is spinning faster than passenger, neither making any noise but right hand wheel spins more freely than left. Brakes not rubbing.
Should both wheels spin evenly under no load?
I'm just guessing at things before ordering a new hub/bearing (or maybe I need to do both at the same time?)
GreenV8S said:
21TonyK said:
Should both wheels spin evenly under no load?
Yes, if everything is working properly. If one side feels stiffer, something on that side of the diff isn't working properly.Cheers
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